Trek Powerfly+ 4 Gen 5 Electric Mountain Bike - Grey

Name: Trek Powerfly+ 4 Gen 5 Electric Mountain Bike - Grey
Brand: Trek
SKU: cfai76eiub
Availability: InStock

The Powerfly+ 4 is an adventure-ready electric mountain bike that doesn’t break the bank. It’s rea...

Best current price£2,300.00from Evans Cycles UK

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Trek Powerfly+ 4 Gen 5 2025 Electric Mountain Bike Small Black

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Evans Cycles UKTrek Powerfly+ 4 Gen 5 2025 Electric Mountain Bike Small Black

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Product Information

Full details

The Trek Powerfly+ 4 Gen 5 is an electric mountain bike designed for riders seeking versatility for commutes and light trails without a high price tag. Its key benefit is a powerful Bosch motor and durable components offering a smooth, assisted ride. A potential caveat is that its suspension is optimized for lighter trails and commuting, not extreme downhill riding. Key features include a robust aluminum frame, SR Suntour suspension, Shimano CUES 10-speed drivetrain, and Bosch's Performance Line CX motor with Purion 200 remote.

All features

Model Part Number	5329758
Brand	Trek

Extended Product Information

FAQs

What is the maximum rider weight for the Trek Powerfly+ 4?

The maximum system weight (rider + bike + cargo) for Trek electric bikes is typically 300 lbs (136 kg). Always check the specific product manual for the most accurate information.

How far can I ride on a single charge?

Range varies greatly depending on terrain, rider weight, assist level, and battery size. With the standard 600 Wh battery, expect anywhere from 30 to 80 miles (48 to 129 km) under typical conditions.

Can I upgrade the battery for more range?

Yes, the Powerfly+ 4 is compatible with an optional 800 Wh battery upgrade for significantly increased range.

How do I customize the motor power using the app?

Download the Bosch eBike Flow app, pair it with your bike's system, and navigate to the motor settings. You can adjust parameters like torque and peak power within the app's customization options.

What type of riding is this bike best suited for?

This bike is ideal for daily commutes, recreational riding, exploring bike paths, and light to moderate off-road trails. It's not designed for extreme downhill or enduro riding due to its suspension travel.

Is the bike compatible with mudguards and racks?

While not explicitly detailed in the provided information, most Trek electric mountain bikes are designed with mounts for accessories like mudguards and rear racks, making them suitable for utility use. Check with a dealer for specific compatibility.

Troubleshooting

Motor not providing assistance

Ensure the battery is charged and properly seated. Check that the system is turned on via the Purion 200 remote. Verify that the speed sensor is correctly positioned and unobstructed.

Brakes feel weak or noisy

Check the brake pads for wear and clean the rotors with isopropyl alcohol. Ensure the brake levers are not sticking and that the hydraulic system has no leaks. Professional adjustment may be needed if issues persist.

Shifting is rough or inaccurate

Inspect the rear derailleur for any bends or damage. Check cable tension and adjust if necessary. Ensure the chain and cassette are clean and lubricated.

Battery not charging

Verify the charger is plugged in correctly and the power outlet is functional. Ensure the battery contacts are clean. Try a different charger if available, or contact support.

Pros and Cons

Pros

Excellent value for an electric mountain bike with a Bosch motor.
Versatile for both commuting and light off-road trails.
Durable Shimano CUES components ensure reliable shifting.
Customizable power output via the Bosch eBike Flow app.
Easy battery removal for charging and storage.

Cons

Suspension travel (120mm) is best suited for light trails, not aggressive downhill.
Wired tire bead may be less resilient than tubeless setups.
Internal routing can make some maintenance tasks more complex.
Base battery size (600 Wh) may be limiting for very long rides without an upgrade.

Setup, Compatibility & Care

Initial Setup: Unpack the bike carefully. Ensure the handlebar is securely attached and properly aligned. Install pedals according to the manufacturer's instructions (left pedal is reverse-threaded). Charge the Bosch battery fully before the first ride. Consult the Bosch manual for initial motor system setup and pairing with the eBike Flow app.

Compatibility: This bike is compatible with the Bosch ecosystem, including the eBike Flow app and Bosch Power More booster batteries. It uses standard 12mm thru-axles front and rear and a tapered head tube. The frame has internal routing for clean cable management.

Care: Regularly clean the bike, especially after riding in wet or muddy conditions. Use a damp cloth and mild soap; avoid high-pressure washers. Keep the chain lubricated with appropriate bike chain lubricant. Check tire pressure regularly. The SR Suntour fork can be maintained by cleaning the stanchions and ensuring the lockout mechanism functions correctly. The RIB 2.0 battery should be removed for long-term storage and kept in a dry, temperate environment.